We might be on the cusp of a change in the business-evolution of online video. Hint: it involves YouTube, which is owned by Google, and paid subscription service. And the NBA season starts tonight with three games, and the promise of a lot of money. This month the basketball league announced a 9-year, $24 billion deal with TV networks; nearly tripling the cash it gets from broadcasting. But the trickle-down started before the deal was even signed. Plus, since the landmark “Citizens United” Supreme Court decision in 2010, money from outside groups has poured into elections. In Iowa, what’s unusual this year is that in addition to a blizzard of TV ads, members of outside groups are also out knocking doors.